Light source unit, illumination device, image display...

Light source unit, illumination optical device, projector,...

Light source, and projector provided with the light source

Light square projector for use in pasting adhesively-waxed print

Light tunnel apparatus of an optical engine and projection...

Light tunnel with gradient filter layer

Light valve image projection apparatus

Light valve projection system with improved illumination

Light valve projector apparatus and technique

Light width controller and image projector employing the same

Light zoom source using light emitting diodes and an...

Light-beam projecting device

Light-beam-projecting apparatus

Light-blocking transparency assembly

Light-emitting module and image projection apparatus using same

Light-modulating projector

Light-source device and projection type display device

Light-source device and projection-type display device

Lighting device and projection type display apparatus using...

Lighting device and projection type image display device